Home / 3,151.02-4,721.74-1,505.30

Finding the Fourth Proportional to 3,151.02, 4,721.74 and 1,505.30

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Solution

The fourth proportional to 3,151.02, 4,721.74 and 1,505.30 is: 2,255.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151.02 : 4,721.74 = 1,505.30 : x
  2. Step 2: Convert to fraction form
    3,151.02/4,721.74 = 1,505.30/x
  3. Step 3: Cross multiply
    3,151.02x = 4,721.74 × 1,505.30
  4. Step 4: Simplify right side
    3,151.02x = 7,107,635.22
  5. Step 5: Solve for x
    x = 7,107,635.22/3,151.02
  6. Step 6: Final answer
    x = 2,255.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.